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Visual field map clusters in human frontoparietal cortex
The visual neurosciences have made enormous progress in recent decades, in part because of the ability to drive visual areas by their sensory inputs, allowing researchers to define visual areas reliably across individuals and across species. Similar strategies for parcellating higher-order cortex ha...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
eLife Sciences Publications, Ltd
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491263/ https://www.ncbi.nlm.nih.gov/pubmed/28628004 http://dx.doi.org/10.7554/eLife.22974 |
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author | Mackey, Wayne E Winawer, Jonathan Curtis, Clayton E |
author_facet | Mackey, Wayne E Winawer, Jonathan Curtis, Clayton E |
author_sort | Mackey, Wayne E |
collection | PubMed |
description | The visual neurosciences have made enormous progress in recent decades, in part because of the ability to drive visual areas by their sensory inputs, allowing researchers to define visual areas reliably across individuals and across species. Similar strategies for parcellating higher-order cortex have proven elusive. Here, using a novel experimental task and nonlinear population receptive field modeling, we map and characterize the topographic organization of several regions in human frontoparietal cortex. We discover representations of both polar angle and eccentricity that are organized into clusters, similar to visual cortex, where multiple gradients of polar angle of the contralateral visual field share a confluent fovea. This is striking because neural activity in frontoparietal cortex is believed to reflect higher-order cognitive functions rather than external sensory processing. Perhaps the spatial topography in frontoparietal cortex parallels the retinotopic organization of sensory cortex to enable an efficient interface between perception and higher-order cognitive processes. Critically, these visual maps constitute well-defined anatomical units that future studies of frontoparietal cortex can reliably target. DOI: http://dx.doi.org/10.7554/eLife.22974.001 |
format | Online Article Text |
id | pubmed-5491263 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | eLife Sciences Publications, Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-54912632017-07-03 Visual field map clusters in human frontoparietal cortex Mackey, Wayne E Winawer, Jonathan Curtis, Clayton E eLife Neuroscience The visual neurosciences have made enormous progress in recent decades, in part because of the ability to drive visual areas by their sensory inputs, allowing researchers to define visual areas reliably across individuals and across species. Similar strategies for parcellating higher-order cortex have proven elusive. Here, using a novel experimental task and nonlinear population receptive field modeling, we map and characterize the topographic organization of several regions in human frontoparietal cortex. We discover representations of both polar angle and eccentricity that are organized into clusters, similar to visual cortex, where multiple gradients of polar angle of the contralateral visual field share a confluent fovea. This is striking because neural activity in frontoparietal cortex is believed to reflect higher-order cognitive functions rather than external sensory processing. Perhaps the spatial topography in frontoparietal cortex parallels the retinotopic organization of sensory cortex to enable an efficient interface between perception and higher-order cognitive processes. Critically, these visual maps constitute well-defined anatomical units that future studies of frontoparietal cortex can reliably target. DOI: http://dx.doi.org/10.7554/eLife.22974.001 eLife Sciences Publications, Ltd 2017-06-19 /pmc/articles/PMC5491263/ /pubmed/28628004 http://dx.doi.org/10.7554/eLife.22974 Text en © 2017, Mackey et al http://creativecommons.org/licenses/by/4.0/ This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited. |
spellingShingle | Neuroscience Mackey, Wayne E Winawer, Jonathan Curtis, Clayton E Visual field map clusters in human frontoparietal cortex |
title | Visual field map clusters in human frontoparietal cortex |
title_full | Visual field map clusters in human frontoparietal cortex |
title_fullStr | Visual field map clusters in human frontoparietal cortex |
title_full_unstemmed | Visual field map clusters in human frontoparietal cortex |
title_short | Visual field map clusters in human frontoparietal cortex |
title_sort | visual field map clusters in human frontoparietal cortex |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491263/ https://www.ncbi.nlm.nih.gov/pubmed/28628004 http://dx.doi.org/10.7554/eLife.22974 |
work_keys_str_mv | AT mackeywaynee visualfieldmapclustersinhumanfrontoparietalcortex AT winawerjonathan visualfieldmapclustersinhumanfrontoparietalcortex AT curtisclaytone visualfieldmapclustersinhumanfrontoparietalcortex |